Light from distant galaxies shows us the past.
Fact #1682
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The light you see from some stars today began traveling before humans existed.
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Time moves slower in stronger gravitational fields.
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Some birds migrate using landmarks and stars.
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Some galaxies contain supermassive black holes millions of times the Sun’s mass.
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The Earth's gravity keeps the Moon in orbit.
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In 1954, a woman in Alabama reported being struck by a meteorite fragment inside her home.
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Some galaxies appear distorted due to gravitational effects.
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